128 lines
3.4 KiB
YAML
128 lines
3.4 KiB
YAML
# infrastructure/core/coredns-deployment.yaml
|
|
apiVersion: apps/v1
|
|
kind: Deployment
|
|
metadata:
|
|
name: coredns
|
|
namespace: kube-system
|
|
labels:
|
|
k8s-app: kube-dns
|
|
kubernetes.io/name: CoreDNS
|
|
spec:
|
|
progressDeadlineSeconds: 600
|
|
replicas: 2
|
|
revisionHistoryLimit: 0
|
|
selector:
|
|
matchLabels:
|
|
k8s-app: kube-dns
|
|
strategy:
|
|
type: RollingUpdate
|
|
rollingUpdate:
|
|
maxSurge: 25%
|
|
maxUnavailable: 1
|
|
template:
|
|
metadata:
|
|
labels:
|
|
k8s-app: kube-dns
|
|
spec:
|
|
containers:
|
|
- name: coredns
|
|
image: registry.bstein.dev/infra/coredns:v1.12.1
|
|
imagePullPolicy: IfNotPresent
|
|
args:
|
|
- -conf
|
|
- /etc/coredns/Corefile
|
|
ports:
|
|
- containerPort: 53
|
|
name: dns
|
|
protocol: UDP
|
|
- containerPort: 53
|
|
name: dns-tcp
|
|
protocol: TCP
|
|
- containerPort: 9153
|
|
name: metrics
|
|
protocol: TCP
|
|
livenessProbe:
|
|
httpGet:
|
|
path: /health
|
|
port: 8080
|
|
scheme: HTTP
|
|
initialDelaySeconds: 60
|
|
periodSeconds: 10
|
|
timeoutSeconds: 1
|
|
successThreshold: 1
|
|
failureThreshold: 3
|
|
readinessProbe:
|
|
httpGet:
|
|
path: /ready
|
|
port: 8181
|
|
scheme: HTTP
|
|
periodSeconds: 2
|
|
timeoutSeconds: 1
|
|
successThreshold: 1
|
|
failureThreshold: 3
|
|
resources:
|
|
limits:
|
|
memory: 170Mi
|
|
requests:
|
|
cpu: 100m
|
|
memory: 70Mi
|
|
securityContext:
|
|
allowPrivilegeEscalation: false
|
|
capabilities:
|
|
add:
|
|
- NET_BIND_SERVICE
|
|
drop:
|
|
- all
|
|
readOnlyRootFilesystem: true
|
|
volumeMounts:
|
|
- name: config-volume
|
|
mountPath: /etc/coredns
|
|
readOnly: true
|
|
- name: custom-config-volume
|
|
mountPath: /etc/coredns/custom
|
|
readOnly: true
|
|
dnsPolicy: Default
|
|
nodeSelector:
|
|
kubernetes.io/os: linux
|
|
priorityClassName: system-cluster-critical
|
|
restartPolicy: Always
|
|
schedulerName: default-scheduler
|
|
serviceAccountName: coredns
|
|
tolerations:
|
|
- key: CriticalAddonsOnly
|
|
operator: Exists
|
|
- key: node-role.kubernetes.io/control-plane
|
|
operator: Exists
|
|
effect: NoSchedule
|
|
- key: node-role.kubernetes.io/master
|
|
operator: Exists
|
|
effect: NoSchedule
|
|
topologySpreadConstraints:
|
|
- maxSkew: 1
|
|
topologyKey: kubernetes.io/hostname
|
|
whenUnsatisfiable: DoNotSchedule
|
|
labelSelector:
|
|
matchLabels:
|
|
k8s-app: kube-dns
|
|
- maxSkew: 1
|
|
topologyKey: topology.kubernetes.io/zone
|
|
whenUnsatisfiable: ScheduleAnyway
|
|
labelSelector:
|
|
matchLabels:
|
|
k8s-app: kube-dns
|
|
volumes:
|
|
- name: config-volume
|
|
configMap:
|
|
name: coredns
|
|
defaultMode: 420
|
|
items:
|
|
- key: Corefile
|
|
path: Corefile
|
|
- key: NodeHosts
|
|
path: NodeHosts
|
|
- name: custom-config-volume
|
|
configMap:
|
|
name: coredns-custom
|
|
optional: true
|
|
defaultMode: 420
|